Paper-cutting machine.



PATENTED MAY 8, 1906.

A. BREDENBERG. PAPER CUTTING MACHINE.

APPLICATION FILED 001 s, 1904..

2 SHEETSSHEBT 1,

\ ,f A ,1 1, MANN v11u w A '1 PATENTED MAY 8, 1906.

A. BREDENBERG.

PAPER CUTTING MACHINE.

APPLICATION FILED 0GT.8,1904.

- 2 SHEETS-SHEET 2 INVENTOR W 7 MMW ATTORNEY UNITED srairnsmrnnr canon.

ALFRED eREDhNisERc, ta CHAMPLAIN, EWYoRK, ASSIGNOR OF ONE-n "HAL'F'TOTHE SHERIDAN. iRo wee s, IAcoaPoRAT oN or New;

' YORK, AND ONE-HALF *ro- T. W. & c. B. SHERIDAN coMPANY, A coa-PORAIION oF NEWXORK;

asse-CUTTING MACHINE:

To (Hawk/m, it may concern: v

Be it known that I, ALFRED BREDENBERG,

a citizen of the United States, and a resident of Champlain, Clintoncounty, New York,

have invented certain new and useful Improvements in Paper-CuttingMachines, of

' which the following is a specification.

My invention relates topapencuttmgmachines, and more particularly to themechan- [o ism employed in such machines for clamping and holding thepaper during the time that the cutter is operated thereon.

An object of my invention is toprovide an automatically-actuatedclamp-operating mechanism which may be easily and quickly adjusted toexert different degrees ofclamp ing force to suit different sizes andcharacters ofstock and also to provide an automatic allyactuated clamp 7operating mechanism which for a given adjustment will always operate toapply the same clamping force.

A further object of my invention is to provide with anautomatically-actuated clampoperating mechanisnra manually-operated 2-5clamp-actuating mechanism which is normally inoperative relation and maybe operated either separately or in conjunction with the automaticclamp-actuating mechanism,

so that the clamping force exerted by the au- 0 tomatic clamp-actuatingmechanism may be increased by the manually-operated clampactuatingmechanism at the will of the operator and quickly'so increasedwithout'inter-.

v 5 My invention consists in the novel parts,

improvements, and combinations herein shown and described.

In the accompanying drawings, which are referred to herein and form apart hereof, is

illustrated one embodiment of my invention,

the same serving in connection with the dethe invention.

T Patented May 8,

scription herein to a in the principles'of.

Of the drawings, Figure 1" is a front eleva tion of a paper-cuttingmachine constructed in accordance with 'my"'invention," certain parts ofthe mechanism being shown in section to illustrate more clear] theconstruc tion th'ereofl, 2 is a vertical central Ion-f gitudinal sectionof the machine shown in struction. 5 is a'trans'verse section of thesame, taken on' the line 5 5 of Fig. Land looking in thedir ectio'n ofthe arrows; and

and 7 are side elevations illustrating- Figs. 6 details.

Referring now in detail to the particularconstruction illustrated by wayof example in the drawings, the same wlll'he seen to consist of 'a pairof side frames 1 and 2, sui'tabl connected by girders 3 and {t and byaWor supporting table 5, which parts may be of the ordinary construction.The cuttin'g'mechan lsm may be constructed-and operated in any ;6oFig. 1. Fig. 3is' an end elevation of the same. Fig.1'4 isa verticalcentral section, on 'anen larg'ed scale, illustrating a detail of the 001- tion with a pair of cranks arranged on the opposite ends of the mainshaft 7 and moved 1n the direction of ltslength to effect a shear cut aby means of a link 8,-pivotally connected at one end to the girder 4 andat the other end to thecutter-bar 6. The crank-shaft 7 may be driven inany suitable way. As shown, one'of the cranks is formed on a gear-wheel9, which meshes with a pinion 10, fixed to one end of 'a short shaftjournaled in the side frame 2 andprovided at its inner end with agear-wheel 11, arranged to mesh with a pinion on the driving-shaft 12.The shaft 12 may be driven in any suitable way, as by means of tight andloose pulleys 13, and said shaft is preferably also pro vided with aheavy fly-wheel 14 toovercome any sudden strains to which the mechanismis subjected and insure evenness of operation.

The clamp by which the paper is firmly held on the table during thecutting operation maybe of any suitable construction. As

I oo

1 'tion. Preferably an /clamp bar is provided at or near each end with adepending rod 16, each of said rods being provided at its lower end witha rack, as shown in Fig. 2, which is arranged to mesh with a pinion on aclamp-actuating shaft '17. suitably journaled at its opposite ends inthe side frames 1 and 2. So far as some of the features 'of my inventionare concerned the clamp {actuating shaft 17 maybe driven from thepower-shaft 12 by any suitable'mechanism, permitting the'shaft to'be"connected and disconnected intermittently or temporarily at will andpermitting a slip or lost motion'between the clamp-shaft and thedriving-shaft when theclamp-bar shall have been brought down upon thepaper to be cut with a suitable force. Preferably, however, and inaccordance with one feature of my invention a friction-operated drivingo mechanism is mounted. directly on the shaft 17. In accordance with the"construction shown a driving-gear 18 is loosely journaled on the shaft17, and on the] opposite sides of this gear is arranged a pair of is'ks19 and. 20, the former being rigidly fixed on :the shaft 17 and thelatter being splined'thereon, so as to rotate therewith, but capable ofslight longi tudinal movement thereon, Preferably and as shown thesedisks areiconstructed to make frictional contact with the opposite sidesof the web ofthe driving-gear 18, suitable friction material being arraned between the nee-- tallic surfaces to provi e a mor e effective anduniform frictional engagement thereofj thereof.

So far as some of thefeatures of my inven 'tion are concerned anysuitable driving connection may be provided between the gear 18 and thedrivingshaft v12. Preferably,

however, and as shown'the gear 18 is arranged to mesh directly with thepinion '10, by which the crank driving-gear 9 is actuated. So far assome of the features of my invention are concerned, moreover, anysuitable .means 5 may be provided for actuating the slidin friction-disk20 so as to effect a frictiona driving connection between the gear 18and e the shaft whenever it is desired to operate the paper-clamp bypower. In accordance with one feature of my invention, however, the

frictional connection between the driving mechanism and the shaft 17 iseffected by connections includinga spring which serves to appl y apredetermined amount of force .to sa d frictional connections, andpreferably as shown, however, the

' earned by a collar fixed on the shaft 17,

said connections include also means whereby the'force of the spring maybe readily adjusted to vary the amount of force w th which the saidfrictional engagement 1s effected. In accordance with the particularconstruct on illustrated in the drawings the friction dlsk 2Oisforced vinto engagement- ;W1i7h the gear 18, so'as to clamp t e web of'thelatter \between the disks 19 and20 by means'of a air ofoppositely-arranged cam-levers 21' an 2% erably by means permittinglongitudina adjustment of the levers to make provision for wear that mayoccur between the gear an the friction-disks. construction shown alsothe cam ldvers 21' and 22 are actuated by means of a conesha ed collar23, arranged to slide longitudi n al y on the shaft 17 and havingoperative connection with a lever 24, fixedvat one end to a stud25,projecting from the side frame 2, and connected at its opposite-endto a rod 26, mounted to, slide longitudinally in the side frames 1and'2; In accordance with the conalongliillie shaft,f'so as the ta 'n u0 any 3 g p d 80' In accordance with the struction shown also the rod 26is moved in the direction required to move the disk 20 into frictionalengagement with the gear 18 by means rounding the rod-26 and confinebetween of a compression-sprin 27 surthe side frame 2 and a collar 28 onthe rod I 26. For the purplose of varying readily the compression of t espring 27, and thereby varying. the

disk 20 is brought into contact with the gear "18,-the collar 28 isthreaded onto the rod 26 and is provided, when desired, with means tofacilitate its being turned on the rod, such as a series of pin-holesadapted to receive a pin-wrench.

Any suitable means may be provided to move the rod 26 outwardly againstthe force of the spring 27,so as to release the frictional connectionbetween the clamp actuating shaft 17 and its driving-gear 18. Inaccordance with the preferred construction and as shown the crank-shaft7 is provided with a cam 29, arranged to make contact with one end of abell-crank lever 30, pivotally mounted on a suitable bracket fixed tothe side force with which the frictionframe 2. The opposite arm of thelever 30 is connected by a link 31 (clearly shown in Fig. 7) with apivot-block 32, fixed on the rod 26. As is usual iIlPOWgT-(ll'iVQhcutting-machines, a clutch. mechanism is provided between thedriving-shaft 12 and the gearing by which the cutter-bar, i riven, asindicated at 33 in Fig. 1, and, as usual, also this clutch mechanism isoperated to connect the gearing with the power-shaft by a handle 34 andis automaticallyv disconnected by a suitable trip device '35, mounted onthe cutter-operatmg crank-shaft 7 in such position as to stop themachine when the cutter-bar is at the upward limit of its stroke. Thecam29, which starts controls the clamp-actuating mechanism, is so adjustedon the shaft 7 that when the latter is at rest the drivinggear 18 isdiscon nected from the clamp-actuating shaft 17 but as soon as the shaft7 starts to rotate the moved at the grailually-accelerating speed.

resulting from the curved paths of the cutteractuating cranks. Theclamp-bar will continue to move down until it meets the pile of paperand compresses the same with such force as to cause the gear 18 to slipbetween the friction-disks 19 and 20, and as the ear 18 continues torotate the clamping force will be maintained until the cutter-barcompletes its downward movement. The formof the cam 29 is such that atthis instant the lever 30 will be operated to release the frictionalconnection between. the gear 18 and the clamp actuating shaft 17. Anysuitable means may be provided for returning the clamp to its normalinoperative position. 'As shown, the shaft 17 is provided near thecenter of the machine with a drum 36, which is connected by a flexiblestrap 37 with a Weight 38.

It has been found that stock of certain classes requires a greaterclamping force than can readily be applied by afriction-operatedclamp-actuating mechanism or that can be applied by apower-driven clamp without putting an undue strain upon the drivingmechanism or otherwise interfering with the proper or efficientoperation of the machine. In accordance with one feature of myinventi'on, therefore, I have provided in the machine means whereby theclamping force applied by the automatically-operated orpowerdrivenclamp-actuating mechanism may be effectively augmented or increasedmanually and at the will of the operator. The mechanism whereby this isaccomplished may be varied widely in construction and arrangementwithout departing from the main principles of this feature of theinvention. In accordance with the preferred construction, however, themanually-imcratml clamp-actuating mechanism so constructed that it maybe used either in conjunction with the automatically-operatedclamp-actuating mechamsm or separately, and preferably also themanually-opcrated clampactua.ting mechanism 1s so constriuJ-tcd that nospecial manipulation of the mcchanismsuch for exampie, as the operationof a clutch-is required to bring the said mechanism into operation. Inaccordance with the particular embodiment of this feature of theinvention illus trated a worm-wheel 39 is loosely mounted in theclanip-actuating shaft 17 and preferably at the opposite endfrom that onwhich the driving-gear and friction-disks are located. For the purposeof driving the wormgear 39 a worm 40 is employed, the same being fixedon a shaft 41, suitably 1ourmtled in bearings fixed on the side frame 1and provided with a hand-wheel 42. As shown, a wheel 43, having internalratchet-teeth, is fixed on the shaft 17 adjacent to the wormwheel 39,and the worm-wheel is provided with a spring-held pawl 44,- which is solocated as to cause the wheel 43 and the shaft 17 to turn with the worm39 when the latter is moved in a direction to move the clamp 15downwardly. By reason of this construction it will be seen that theclamp-bin is free to be moved downwardly at any time by means of theautomatically-operate:l clamp-actuating mechanism, and that by simplyturning the hand-wheel 42 in the proper direction the shaft 17 may bedriven with great force in the same direetion as it is driven by theautomatically-operated mechanism, and that the force of themanually-actuatedworm-gear may be thus added. to that of theautomatically-operated mechanism almost instantly or as soon as the pawl+14 may be brought into engagement with one of the ratchet-- teeth ofthe wheel 43.

In order that the nmrmally-operated clamp-actuating mechanism may notinterfere with the automatic return of the clampbar after the cuttingoperation is complete, means are preferably provided for effecting anormal disengagement between the hand operated clamp-actuating mechanismand the clamp. This may be effected in various ways. In accordance withthe construction shown means are provided for holding the pawl 44normally out of engagement-with the teeth of the wheel .43. This isaccomplished by connecting the pawl 44 with an arm 45, arranged toproject in an outward direction at the-sideicf the wheel 39,:1nd a step4.6 is fixed on the side frame 1 in the path of said arm 45. It followsfrom this construction that when the worm-wheel 39 is brought to acertain position the wheel 43 and shaft 17 will be free to turn ineither direction independently of the worm-wheel. The same act ofturning the hand-wheel 42, luiwevcr, in a direction to move the clamp 15('lmvnwa-rd will serve to effect innmdiately a ennecti'on between theworm-wheel 39 and the clamp. It will be seen, moreover, that -to releasethe clamp from the manually-operated mechanism it will be only necessaryto turn the hand-wheel 4-2 back the short distance through which it wasturned forward. or in a direction to increase the clamping nipulation ofany part of the machine other than the mere actuation of the saidmechanism itself. There is no time lost in connecting and disconnectingthe manually-operated mechanism, and there is no danger of breaking ordisarranging-the parts by reason of neglect on the part of the operatorin not disconnecting, as there might be if he were required to connector disconnect such mechanism.

For the purpose of quickly bringing the clamp-bar down into contact withthe surface of the pa or" to aid in properly locating the latter undbrthe cutter means maybe provided, as is usual in this class of machines,whereby the clamp may be actuated by a foot-lever. In the particularmachine shown in the drawings the lower ends of the rod 16 areconnected, by means of suitable links and arms, to a rock-shaft 47,having a centrally arranged foot lever 48 projecting therefrom to aconvenient point near the front of the machine. It is to be noted thatthis mechanism is provided to efiect a quick movement of the clamp andaimovement,

. therefore, which is necessarily accompanied by a little force and notsufficient force to increase the effective clamping force.mate

rially, except possibly under extreme conditions, where little clampingforce is required, under which conditions the clamping force produced bythe automatically -operated mechanism Will be ample and will not requireaugmentation. It is to be understood, therefore, that suchclamp-actuating mechanism as that exemplified by the treadle 48 andconnections described is not included in the expression manuallyoperatedclamp ac tuating mechanism as herein used.

The operation of. the machine having been fullyset forth in connectionwith the description of the construction thereof will require no furtherdescription.

My invention in its broader aspects is not limited to the particularconstruction shown in the drawings and herein described, as many chan esmay be made in the details thereof witlicut departing from the mainprinciples of the invention and without sac rificing its chiefadvantages,

Having thus described my invention, What I claim as new, and desire tosecure by Letters Patent, is I 1. In a paper-cutting machine, thecombination of a clamp,'connections'including a shaft for operating saidclamp, a driving- Wheel loosely journaled on said shaft and forming onemember of a friction driving connection, means forming another member ofsaid friction driving connection confined to rotate with said shaft, aspringforforcing' said friction driving connections into operativeengagement, and means for dlsengaglng said friction driving connections.

2. In a paper-cutting machine, the combination of a clam means includinga shaft foroperating sai loosely journaled on said shaft, a frictiondriving connection between said wheel and said shaft, a springforforcing said friction driving connections into operativeengagement,means whereby the force of sald s r1ng maybe readily varied, and meansfor mengagin said driving connections.

3'; n a paper cutting machine, the combination of a clamp, meansincluding a shaft for operating said clamp, a driving-wheel looselyjournaled on said shaft, a friction driving connection between saidwheel and said shaft, :1. spring for forcing said friction drivingconnections into operative engagement, means whereby the force of saidspring maybe readily varied, means for disengaging said drivingconnections, and means independent of said gear-and friction drivingconnections for returning the clamp. v

4. In apa er-cutting machine, the combination of a 0 amp, rack-barscarried by said clamp, a shaft having pinions meshing with saidrack-bars, a gear loosely journal'ed on said shaft, a frictiondriving'connection be-- tween said gear and said shaft, a spring forforcing said friction driving connection intooperative "engagement, andmeans for automatically controlling the action of said springi 5. n apaper-cutting machine, the combination of a clamp, means including ashaft for o crating said clamp, a driving-wheel loose yj ournaled on'vsaid shaft, friction driving connections between said wheel and'saidshaft, a plurality of oppositely-arranged levers adjustably mounted onsaid shaft .for actuating said friction driving connections, a springfor actuating said levers, and means for automatically controlling theaction of said spring. Y

6. In a paper-cutting machine, the combination of a clamp, meansincludin a shaft for operating said clamp, a driving-w eel looselyjournaled on said shaft, friction driving connections between said wheeland said shaft, a plurality of oppositelyarranged levers adjustablymounted on said shaft for actuating said friction driving connections, aspring for actuating said levers, means for automatically controllingthe action of said spring, and means independent of said driving-wheeland friction driving connections for returning the clamp.

7. In a paper-cutting machine, the combination, of a clamp, a pair ofracks connected with the opposite ends of said clamp, ashaft havingpinions meshing with said racks, a gear loosely journaled on said shaft,a pair of clamp, a driving-wheel I disks adapted to engage the oppositesides of said gear to form a friction driving connection between saidgear and the shaft, a plurality of oppositely-arranged levers adjustablvmountedon said shaft for operating said friction-disks, and means foroperating 's'aidlevera said ear to form a friction (rivmgconnection-be-tween said gear and the shaft, a plu rality ofoppositely-arranged levers ad ustably mounted on said shaft for oper'atmsaid friction-disks, automatically-controlle means for operating saidlevers, and means independent of said gear and friction drivingconnections for returning the clamp.

9; In a pa er-cutting machine, the combination of a c amp, a pluralityof clam -ac tuating devices adapted to apply e ective clamping force,and means w ereby two of said devices may be operated independently ofeach other or both of them operated together.

IOI In a paper-cutting machine, thecombination of automatically-operatedclamp actuating devices, manually-operated clampactuating devicesoperative independent y of said autoniatically-operated clam actuatingdevices and adapted to apply e ective clamping force, and means wherebythe manually-operated clamp-actuating devices may be operated inconjunction with the poweroperatedclamp-actuating devices.

11. In a paper-cuttim machine, the combination of automatically-operated clampactuating devices, manually-operated clam actuatingdevices operative independenty of said automatically-operated clam-actuating devices and adapted to appjy e ective clamping force, andmeans where y the manually-operated clamp-actuating devices may beoperated either singly or in conjunction with the automatically-operatedclamp-actuating devices.

12. In a paper-cutting machine, the combination of a clamp,automatically-operated clamp-actuating devices, manually-operatedclamp-actuating devices adapted to apply effective clamping force, andmeans whereby either of said clamp-actuating devices may be operatedeither singly or in conjunction With the other clamp-actuating device.

13. In a aper-cuttin machine, the combination o automatic ily-operatedclampactua-ting devices, manually-operated clam actuating devicesoperative independently ofsaid automatically-operated clamp-actuatingdevices and including a worm and worm-wheel and connections between theoperated in conjunction with the said auto matic clamp-actuatingdevices, said means being constructed so as not to interfere with thereturn movement of the clamp when the manually-operated clamp-actuatingdevices are not operated.

15. In a paper-cutting machine, the combination of a clamp, meansincluding a shaft for operating said clamp, automatically-0peratedclamp-actuating devices connected with said shaft, manually-operatedclampactuating devices operative independent y of saidautomatically-operating clamp-actuating devices, said manually-operatedclampactuating devices including a worm-wheel loosely mounted on saidshaft, a hand-wheel and worm for driving said worm-wheel, andconnections between said worm-wheel and said shaft, permitting freemovement of the shaft in one direction independent of said worm-wheelbut preventing movement of the shaft in the op osite direction withrelation to the worm-w eel.

16. In a paper-cutting machine, the combination of a clamp, meansincluding a shaft for operating said clamp, automatically-operatedclamp-actuating devices connected with said shaft, manually-operatedclam actuating devices operative independent y of saidautomatically-operating clamp-actuating devices, said manually-opeiatedclampactuating devices including a worm-Wheel loosely mounted on saidshaft,-a hand-wheel and worm for driving said worm-wheel, andconnections between said worm-Wheel and said shaft, permitting freemovement of the shaft in one direction independent of said Worm-wheelbut preventing movement of the shaft in the op osite direction withrelation to the worm-w ieel, and means whereby the shaft is permitted toturn freely in either direction with relation to the worm-Wheel in oneposition of the latter.

In testimony whereofl have signed my name to this specification in thepresence. of

two subscribing witnesses.

ALFRED BREDEN B ERG.

YVitnesses:

JAS. WERIN, Jr., GEO. H. CLARK.

